Ordnance Artillery 49 Publications by Graduates 45 Ordnance and ordnance stores 44 Gunnery 41 History 40 Manufacture 39 more ... Firearms 17 Projectiles 17 Gun-carriages 16 Gunpowder 13 Weapons 13 Research 12 Ballistics 9 Fortification 8 Armor 6 Design and construction 6 Equipment and supplies 6 Armed Forces 5 Explosives, Military 5 Sailing ships 5 World War, 1939-1945 5 Artillerie 4 Artillery, Field and mountain 4 Equipment 4 Military education 4 Publications about Graduates 4 Rockets (Ordnance) 4 Weapons industry 4 Armor-plate 3 less ...